813022 has 8 divisors (see below), whose sum is σ = 1393776. Its totient is φ = 348432.

The previous prime is 813017. The next prime is 813023. The reversal of 813022 is 220318.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×813022² = 1322009544968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 812987 and 813005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29023 + ... + 29050.

It is an arithmetic number, because the mean of its divisors is an integer number (174222).

2⁸¹³⁰²² is an apocalyptic number.

813022 is a deficient number, since it is larger than the sum of its proper divisors (580754).

813022 is a wasteful number, since it uses less digits than its factorization.

813022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58082.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 813022 is about 901.6773258766. The cubic root of 813022 is about 93.3327579330.

Subtracting from 813022 its reverse (220318), we obtain a cube (592704 = 84³).

The spelling of 813022 in words is "eight hundred thirteen thousand, twenty-two".